That ghostly blur on the right is a woman walking in the middle of the street, and that foot on the left is all that remains of a man moving along the street. Another blurry man is tending to his team of horses next to the sidewalk, and a banner advertising "Oysters in Every Style" is draped across a storefront just beyond the horses.

See also an enlargement of the right-hand side of the photo and the full version of the real photo postcard.